1
Preheat oven to 350 degrees F. Put oven rack in middle position.
2
Whisk together flour, poppy seeds, baking powder, and salt in large bowl. Set aside.
3
Combine sugar and oil in medium bowl. Using electric mixer, blend in eggs, egg whites, and vanilla extract. Add poppy seed mixture and blend until just mixed.
4
Divide dough into 3 equal portions and, working on lightly floured surface, shape each portion into a free-form log about 2" wide and 10" long. Arrange logs several inches apart on large ungreased baking sheet. Bake 25 minutes or until logs are golden. Remove from oven (do not turn off).
5
Use metal spatula to gently loosen logs from baking sheet. Transfer to cutting board and let cool 5 minutes. Cutting crosswise on a slant with sharp knife, slice each log into 1/2"-wide crescents. Arrange half of crescents, standing upright, on clean, ungreased baking sheet and bake 10 minutes longer. Cool on rack. Repeat process with remaining crescents.
